public void PromotionEngine_With_Scenario_C()
{
SimplePromotionEngine.Providers.PromotionEngine promotionEngine = new SimplePromotionEngine.Providers.PromotionEngine();
var invalidProducts = new List <char> {
'A', 'A', 'A', 'B', 'B', 'B', 'B', 'B', 'C', 'D'
};
var total = promotionEngine.ApplyPromotion(invalidProducts);
Assert.IsTrue(total == 280);
}
//[ExpectedException(typeof(Exception))] Ideal way of writing unit test for exception cases
// Here we are going to have try catch block for better understanding
public void PromotionEngine_Is_Valid_Product()
{
try
{
SimplePromotionEngine.Providers.PromotionEngine promotionEngine = new SimplePromotionEngine.Providers.PromotionEngine();
var invalidProducts = new List <char> {
'Z', 'A'
};
promotionEngine.ApplyPromotion(invalidProducts);
}
catch (Exception ex)
{
Assert.AreEqual("Cart contains invalid product(s)", ex.Message);
}
}